Julien Fischer f9f67d679b Add a new foreign proc attribute `maybe_thread_safe' and ...

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Add a new foreign proc attribute `maybe_thread_safe' and
a new compiler option `--maybe-thread-safe'.

The thread safety of foreign procs that have the `maybe_thread_safety'
attribute set is dependent upon the value of the `--maybe-thread-safe'
option.  This facility is intended for use in writing bindings to
libraries whose thread safety is itself conditional.

At quite an early stage `maybe_thread_safe' is turned into
either `thread_safe' or `not_thread_safe' depending on the
value of the `--maybe-thread-safe' option.  In particular,
it will appear as either `thread_safe' or `not_thread_safe'
in any optimization interfaces.

compiler/prog_io_pragma.m
compiler/prog_data.m
	Parse the new foreign code attribute, `maybe_thread_safe'.

	Fix a place where the line width was > 79 characters.

compiler/options.m:
compiler/globals.m:
compiler/handle_options.m:
	Add a new option `--maybe-thread-safe' that tells the compiler
	how to handle `maybe_thread_safe' foreign code attributes.

compiler/make_hlds.m:
	Convert any `maybe_thread_safe' attributes into `thread_safe'
	or `not_thread_safe' attributes depending upon the value of the
	`--maybe-thread-safe' option.

compiler/pragma_c_gen.m:
	Call unexpected/2 if we encounter the `maybe_thread_safe'
	attribute here, as it should have been replaced with either
	`thread_safe' or `not_thread_safe' by this point.

doc/reference_manual.texi:
doc/user_guide.texi:
	Document the new attribute and option.

vim/syntax/mercury.vim:
	Highlight the new attribute.

2005-02-24 06:07:12 +00:00

..

mercury.vim

Add a new foreign proc attribute `maybe_thread_safe' and

2005-02-24 06:07:12 +00:00